Q10 / 120 · NEET 2010 (Mains) · Botany

Which one of the following statements about the particular entity is true?

  • A
    Centromere is found in animal cells which produces aster during cell division
  • Correct answer
    B
    The gene for producing insulin is present in every body cell
  • C
    Nucleosome is formed of nucleotides
  • D
    DNA consists of a core of eight histones

Solution

Scientists have analysed the human DNA sequence present in a human-mouse somatic cell hybrid line possessing a translocation involving human chromosome-II and $\mathrm{X}$. This data indicates that the human insulin gene is located on the short arm of chromosome-II in every body cell but is not expressed in all cells.

Hence, the correct answer is option: 'B'.

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